diff options
Diffstat (limited to 'cpu/mc9328/serial.c')
| -rw-r--r-- | cpu/mc9328/serial.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/cpu/mc9328/serial.c b/cpu/mc9328/serial.c index 45b6f8afd..8dcfb8027 100644 --- a/cpu/mc9328/serial.c +++ b/cpu/mc9328/serial.c @@ -1,6 +1,6 @@ /* - * cpu/mc9328/serial.c - * + * cpu/mc9328/serial.c + * * (c) Copyright 2004 * Techware Information Technology, Inc. * http://www.techware.com.tw/ @@ -23,11 +23,10 @@ * MA 02111-1307 USA */ - #include <common.h> #include <mc9328.h> -#if defined(CONFIG_UART1) +#if defined(CONFIG_UART1) /* GPIO PORT B */ #define reg_GIUS MX1_GIUS_C @@ -35,7 +34,6 @@ #define GPIO_MASK 0xFFFFE1FF #define UART_BASE 0x00206000 - #elif defined (CONFIG_UART2) /* GPIO PORT C */ @@ -44,7 +42,7 @@ #define GPIO_MASK 0x0FFFFFFF #define UART_BASE 0x207000 -#endif +#endif #define reg_URXD (*((volatile u32 *)(UART_BASE+0x00))) #define reg_UTXD (*((volatile u32 *)(UART_BASE+0x40))) @@ -64,16 +62,13 @@ #define TXFE_MASK 0x4000 /* Tx buffer empty */ #define RDR_MASK 0x0001 /* receive data ready */ - void serial_setbrg (void) { -/* config I/O pins for UART */ - + /* config I/O pins for UART */ reg_GIUS &= GPIO_MASK; reg_GPR &= GPIO_MASK; -/* config UART */ - + /* config UART */ reg_UCR1 = 5; reg_UCR2 = 0x4027; reg_UCR4 = 1; @@ -84,22 +79,18 @@ void serial_setbrg (void) { reg_UBRC = 8; } - - /* * Initialise the serial port with the given baudrate. The settings * are always 8 data bits, no parity, 1 stop bit, no start bits. * */ - + int serial_init (void) { serial_setbrg (); return (0); } - - /* * Read a single byte from the serial port. Returns 1 on success, 0 * otherwise. When the function is succesfull, the character read is @@ -112,7 +103,6 @@ int serial_getc (void) { return (u8)reg_URXD; } - /* * Output a single byte to the serial port. */ @@ -129,7 +119,6 @@ void serial_putc (const char c) { } - /* * Test whether a character is in the RX buffer */ @@ -137,10 +126,8 @@ int serial_tstc (void) { return reg_USR2 & RDR_MASK; } - void serial_puts (const char *s) { while (*s) { serial_putc (*s++); } } - |